Plow.



PATBNTED JUNI-1 19, 1906,

L. A. LOHRKE.

PLOW.

APPLIOATION FILED MMM. 190e.

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PATENTED JUNE 19, 1906.

L. A. LOHRKE.

PLOW.

APPLICATION FILED MAILS, 190e.

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.LUDWIG A. LOHRKE, OF CHICAGO, ILLINOIS.

PLOW.

Speccaton of Letters Patent.

Patented June 19, 1906.

`Application filed March S, 1906. Serial No 304.864.

T0 rif/ZZ whom, t 77u01/ concern:

Be it known that I, LUDWIG A. LOHRKE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Plows, of which the following is a specification.

My invention relates to improvements in that class of plows which is generally known as shovel-plows, used more especially for the purpose of loosening up and turning the surface soil similarly to a cultivator.

The more import;.nt objects of my invention are to provide by a novel and improved construction of shovel-plow for readily regulating the depth of penetration of the soil by the sha-re for diHere'nt purposes in plowing, for regulating the draft in accordance with the depth of such penetration, for readily adjusting other parts of the implement, the better to adapt it to different conditions of use, and for rendering the implement readily convertible into a root-cutter by separably securing to it a suitable cutting attachment.

These and other objects are accomplished by the construction hereinafter described, and illustrated in the accompanying drawings, in which- Figure l is a view in side elevation of my improved implement; Fig. 2, a plan view of the seme; Fig. 3, a broken perspective view showing more especiflly the heel and manner of securing thereto the bl cle-sections of the cutting attachment, and Fig. 4 a broken perspective view showing the construction of the draft-link device.

5 is the beam, terminating at one end in a tapering enlargement forming a toe 6 and a rearward projection or ange 7, attached to the bases of both of which is the heel or runner 8 of unusually great length for greater accuracy in guiding. The draft is applied through any suitably-flexible medium or means flexibly connected with the. plowbeam toward its rear end. The means for the purpose illustrated, however, are spreferred and consist of a link device comprising the link members 9 and 10, united by a loop-section 11, the member 9 terminating in a hook 12, adapted to be engaged in the usual way by the evener of the whiffletree (not shown) and the member 10 being secured by a clevis 13 to the beam at a point well back toward the rear thereof or adjacent to the share, the object being to relieve the forward portion of the beam of the pulling strain to which it would be subjected if the whi'lfletree were atti ched, i s custom.rr rily, directly to the eXtreme forward end. I thus prevent the draft strains from bending r nd twisting the beam and am enabled, therefore, to employ a lighter beam in the construction of the plow and at the s-.me time to insure e. firmer 1nd more rigid pull or dr.- ft. Intermedifte the clevis and the forwi` rd end of the be im is djustably secured a wheel-fr:- me 14, the sh" nk portion of which is provided with a row of perforations or recesses l5. The sh nk passes through the loop-section 11 of the draft-link and through slot in the beim z nd is held in pl ce by the eng gement of i.. setscrew 16 with a recess 15. The wheel-fr. `me is bifurcjted at its lower end for journaling in pli ce upon it the ground-wheel 17. To the forward end of the be.` m is secured a clip 1S, and ssing through the he; d portion ofthe clip and rdjustf bly secured therein is an upright draft-regulnting bar 1Q, fastened art ny one of series of holes or depressions 19a by set-screw 2l. rIhis br is provided with :n eye 20, Fig. 4, i t its lower end for the purpose of supporting the draft-link, the member 9 of which p sses through it.

The share 22 is attached to the toe 6 by a bolt 23, Fig. 3, the toe being formed of such shape as will cause it to fit the inner surface of the share, thereby affording a stable support for the latter. The share is provided with two rearwardly-extending wing-sections 24, containing a notch or recess 25 in the rear end of the apex to embrace the shin-shield, hereinafter described. A shield 26 is secured to the shin 27 of the beam by a bolt 2S, which firmly holds the shield in place at its upper end, the lower part being confined within the notch or recess 25 of the share. To the edges of the shield are separably hinged moldboards 29. Metal or wooden handles 30, of usual type and reinforced toward their outer ends by the brace-rod or round 31 extending between them, are attached to the beam, as shown, and are rigidly joined from the round by stay-rods 32 32 to the upper endof a back bar 33, securely bolted at its opposite end to the rear part of the heel 8. This back bar carries on its forward face a bearing 34, terminating in an upwardly-proj ecting threaded stud 34a, to be engaged by a wing-nut 35 for fastening curved links 36 36 to the bearing. One of these links is pivotally attached, as by a hook and eye, to each moldboard near its outer flaring edge to allow the link to be eX- lOO IIO

tended across the stud 34, and it will be seen that by adjustin these links at different holes 37 provide in them upon the stud the moldboards may be s read to any desired extent or drawn toget er into a folded position. At 38 38 are shown similar cutters or blade-sections, which are provided with end flanges 39, Fig. 3, whereat they are detachably secured to one end of the beam by bolts 40, which pass through the flanges and the beam at a point in rear of the toe 6, and to protect the bolts from wear and against being jammed in use I prefer to bolt the bladesections at a point where they will be shielded by the overlapping wing-sections 24 of the share. These blades are provided more especially for cutting celery through its roots -and may also be used for cutting weeds and the like. They extend from the plow in an approximately horizontal position, the forward edge of each being beveled and sharpened to render it a cutting edge. To relieve the plow of undue strain when the blades are in use, I preferably arrange the latter lso that their inner ends, at which they are fastened, shall be in advance of their outer ones, thus insuring a shearing cut and reducing the draft strain accordingly.

The construction of my improved plow provides for the ready removal of either the cutting-blades to adapt the implement to be used as a cultivator or of the moldboards to ada tit to be used as a root-cutter, although botllaD may be used together when occasion demands.

To vary the depth of cut and cause a greater penetration of the share in the soil, I elevate both the wheel-frame and regulatingbar 19 to the desired height, the wheel supporting the beam of the plow as it rolls along on the ground, and thus preventing any irregularity of penetration by the share, and the elevation of the supporting-bar 19 causing the share to penetrate the soil to the depth at which the wheel comes into Contact with the surface of the ground.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a low of the character described, the combination with the beam, of a toe in which its shin portion terminates, a heel secured to said toe, a shield fastened on the beam to cover said shin portion, moldboards hingedly connected with said shield, means for securing the moldboards in adjusted position, a

share secured on said toe, a draft device flexibly connected with the beam adjacent to the share, a ground-wheel-carrying frame adjustably supported on the beam in advance of the point of attachment of said device, and a draft-regulating bar adjustably supported on the forward end of the beam and carrying the forward partof'said draft cui( f.

2. In a plow of the character described, the combination with the beam, of a toe in which its .shin portion terminates, a shield separably fastened on the beam to'cover said shin portion, moldboards hingedly and detachably connected with said shield, a back bar rising from said heel and connected with-the plow-handles, a stud projecting from said back bar, perforated links extending from the moldboards to engage at their openings with said stud, means for fastening said links on said stud, a share secured on said toe, a draft device flexibly connected with the beam adjacent tothe share, a ground-wheelcarrying frame adjustably supported on the beam in advance ofthe oint of attachment of said device, and a draft-regulating bar adj ustably supported on the forward end of the beam and carrying the forward part of said draft device.

3. In a plow of the character described, the combination with the beam, of a toe in which its shin portion terminates, a heel secured to said toe, a shield fastened on the beamto cover said shin portion, moldboards hingedly connected with said shield and provided with means for securing them in adjusted position, a share removably secured on said toe and provided with rearwardly-extending Wingsections, a cutting device comprising cutterblades flanged at their inner ends and bolted through the flanges to op osite sides of the beam to extend outwar ly therefrom beneath said wing-sections, which shield the blade-fastening belts, a draft device flexibly connected with the beam adjacent to the share, a ground-wheel-carrying frame adjustably supported on the beam in advance of the point of attachment of said device, and a draft-regulating bar adjustably supported on the forward end of the beam and carrying the forward part of said draft device.

LUDWIG A. LOHRKE.

IOO 

